Prop won't come off

[mf01]

I'm trying to get my stock prop off and am having no luck. I have the OJ puller. I have been tightening it and then hitting it with a hammer. I'm also tried a rubber mallet on the back of the blades. I'm at the point where I have to keep a 2x4 under a blade just to get the bolt any tighter. Any suggestions? Am I going to need to heat it?

[patoloco]

Bump.

How timely. I'm having the same issue. Using an acme c-clamp puller, tight as it will go, have banged on the back of prop puller with dead blow hammer, heated prop/key with a torch etc..but its not coming off.

[DanielC]

I have had good success with this method.
It is dangerous, be careful.

I use an oxy-acetylene torch on the hub of the propeller.

Get the strut bearing wet by spraying water from the front side of the bearing, until it runs out the bottom side close to the propeller. Take a rag and soak it with water, and wrap it around the strut bearing, and with tension on the propeller, heat the hub of the propeller with the torch. This is one case where you want a lot of heat, because you are trying to get the hub of the propeller hot quickly, before the heat has a chance to transfer to the propeller shaft and expand it too. Leave the propeller nut on the shaft, backed away from the propeller.

Your boat will burn. The trailer bunks will burn. Your gas tank in in the back of the boat, on direct drives. Be extremely careful using this method

[mf01]

I got mine off. I ended up taking a 3lb sledge and hitting the front of the puller (towards bow). It took about 3 hits and it popped.